z-ai
Z.ai: GLM 5.3 Prime
GLM-5.3-Prime is the high-speed variant of Z.ai's GLM-5.3, inheriting its full capabilities while delivering 1.5–2× the output throughput through inference acceleration. It supports text input and output with a 1M-token...
Quality Score
94/100
price + capability + benchmarks
Input Price
$2.80
per 1M tokens · checked 2026-09-24
Output Price
$8.80
per 1M tokens · checked 2026-09-24
Context Window
1,000,000
tokens
- Model ID
- z-ai/glm-5.3-prime
- Vendor
- z-ai
- Released
- September 2026
- Tokenizer
- Other
- Input Modalities
- text
- Output Modalities
- text
- Max Output
- 131,072 tokens
- Tool Calling
- ✓ supported
- Structured Output
- ✓ supported
- Reasoning Mode
- ✓ supported
- Vision
- text only
- Audio
- no
- Moderated
- no
What it costs in practice
Computed from the current $2.80/M input and $8.80/M output rates. Run your own numbers →
| Job | Tokens | Cost |
|---|---|---|
| Summarize a 50-page report | 30k in / 1.5k out | $0.10 |
| Classify 1,000 customer emails | 500k in / 50k out | $1.84 |
| A month of a busy support chatbot | 5M in / 2M out | $31.60 |
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Quick answers
- How much does Z.ai: GLM 5.3 Prime cost?
- $2.80 per million input tokens and $8.80 per million output tokens.
- What is Z.ai: GLM 5.3 Prime's context window?
- 1,000,000 tokens, roughly 1,500 pages of text in a single request.
- Does Z.ai: GLM 5.3 Prime support tool calling?
- It supports tool calling, structured output, a reasoning mode.
- Can Z.ai: GLM 5.3 Prime process images?
- No, it is text-only on the input side.